Roller-bearing for railway-cars.



No. 859,475. RATRNTRD JULY 9,1907

' R. s. woons s 3. 140GB.

ROLLER BBARRNG' RoR RAlLwAY ARS.

APPLICATION FILED AUGJ, 1906.

UNITED sTAfrns Partant ernten.,

EDWIN S. WOODS AND JOHN lTAGOB, OF CHICAGO, ILLINOIS.

ROLLERJBEARING son RAILWAY-cans.

Application led August 4 '/'o al! tol/ont iff. may concern.'

Re it known that we, EDWIN S. Woons and JoHN Moon, citizens ot theUnitedStates, and residents ol' (hitsige,V in the county of Cook andState of Illinois,

. have invented certain new and useful Imprmf'ements in Roller-Bearings;and we do hereby declare that the following is a: t'ull, clear, andexact description thereof, reference being had to the-accompanyingdrz'tw'ings.` andto the letters of reference marked thereon, which l'orma part olvthis specification.

This invention relates to improvements in roller bearings for railwaycars and 'is'herein shown as embodied in a .roller side bearing of thelgeneral type shown in the 'prior patent to Woods, No. 809599 datedJanuary 9th, i906, andwhich is ldesigned to be interposed between theear bolster and the truck of a railway car in a manner to afford -anantifriction bearing between the bolster and truck. i

lhe invention consists in the matters hereinafter set. forth and moreparticularly pointed out in thc appended claims. I i

Among the objects ol our inventionis to lighten the weight oi suchbearings, while maintaining eliicient` strength and durability; toreduce the cost thereof,- and reduce the height over all of that portionot' the bearing whichl is attached to the ear bolster. I v Anotherobject of the invention is to provide an improved bearing surface torthe roller in the upper bearing member which is'formed on a part that isremovably seated therein, thereby providing for readily.'interchangeable bearing surfaces and whereby also the generalconstruction of the casting may be varied as compared to a constructionwherein the bearing is formed on an integral part.' of the casting.

A still further object 01" the invention is-to improve the constructionoi the casingior theupper bearing member, by which the travel of theroller is stopped at the end ot' its traverse at either s ide ot' thecasing.

In the drawinesz`Fi ure l is a lon itudinal section ot the upperbearing-member of a side bearing to which our invention is applied. Fig.2 is a cross-section thereof, on line 2-2 of Fig. 1. Fig. 3 is afragmentary section, taken on line 3-3 of Fig. 1. spectiveview oi' thehard metal wearplate, removed Fig.4 is a perf from theupper casing. Fig.5 is a longitudinal section of the upper `bearing member, showing, amodified arrangement of the curvedend stop for the roller.

The upper bearing member to which our improvements are applied anddesignated as a whole by A,

comprises a castonctal casing having apertured lugs a cz by which it isattached to the car'bolsten and formed to' provide a downwardlyopcning,longitudinally dis- Specication of Letters Patent.

Patented July 9 1907'. ,1906. Serial No. 329,233.

l facing bearing surface of said'casing, and projects l through the.lower open side ol" the chamber for con- I tact with the lower bearing,indicated by the line Cl i The said casing comprises a top wall al, sidewalls a2 a2,

osed roller chamber Al to receive one or 'more rollers B, adapted forrolling Contact; with the downwardly and end walls fr* a3 which areintegral and incluse i said roller chamber A. v'.lhe said side walls areformed l to provide ontheir inner faces elongated channels or i recessesA2 which receive the trunnions or end bearings b ot the roller B. Thebottoms o1' said channels constitute tracks that support the roller l1through the medium ot' said trunnions when the roller is out ofengagement with its bearing surfaces. construction thi` tracks uponwhich said rollertrunnions are supported.comprise continuous barsD Dconnectedl at their ends by transverse members I)1 D?, the wholeconstituting a separable part or member 0l said shell likethe'-construction shown in the prior application of John Jacob, tiled ontheth day ol' July, 1906, Serial Number 324,847. Said lower' track frameis detachably connected with the upper part of said bearing member bymeans of pins D`-D extending transversely through overlapping' lugs onthe upper and lower members of said bearing. Either of said pins mayconstitute a. hinge pin and the other a fastening pin.

In accordance with one feature ol our invention, the downwardly facingbearing surface ol' the casing which the roller engages is formed on aremovable hard metal plate. E that is tilted to the top and end walls ofsaid casing. The groove a" which receives the horizontal portion c ol'said wear-plate l has. in the present instance, inclined walls which areformed to correspond with the general cenit-ally shaped ends oi theroller, while the grooved portionsI ai' of the end walls which receivethey end portions of said wear plate are so formed that thc said endportions lit snugly therein as shown in Fig. In the present instance,the end portions of said wear-plate areiormed to constitutecylindricallir curved stops to engage the pcmiphery of the rollcrto arfrest the travel there/f at each and ofthe casing. ln the constructionillustratedthe'terminalsoltlie curved por- 'tions of tlie'wea1-plat.eengage in abutting relation the [transverse members D ot' the lowertrack member ol l the bearing, whereby said plate is removably held inplace withouty the necessity of additional instelling means. Theemployment'. ol the removable hard-metal wearing plate constructed asdescribed enables the upper bearing member as a whole, to be material.lighti ened, as compared to a construction wherein the upper bearingsurface is formedon an integral part of the cas- In the present- Asbefore stated, thefepdsl of the curvedcomplementally to the pe ing7inasmuch' as the casing` may be made oi a tough, relatively light metaland the wear-plate of Steeler like duiablewearing metal. The casingmaybe-also materially reduced in weight and in height-over all, both oiwhich are important considerations in the use' of devicesy o ithischaracter. Moreover, the arrangement ol the wearing plate combined,as'her'ein shown,-wi th a removable lower track member, enables thefsaidwearing plate to be the' casing, andthe plate is4 held iirrnly4 in4place without the' necessity of using additional iastening devi-ces. lwearing plate 'are and are solocatedwith respect to' the limits oftravel of the roller'asgto-censtitute Curved end 'stops'for'the roller,and' thus relievethe'- resting the' 'travel'v vkheroller in tlifcasing.

A iurtherfeature of'our invention, embodied in-'the Y constructionshown, consists in forming the 'curved snr-l faces? constituting the endstops' continuous with .the

" downwardly facing surface of said 4plate which is en I gaged by theroller. As herein shdwn, the 'curvature planes ofthe axis oi the yrollerwhen arrested at one end .for the other of its travel. Thisarrangement-.possesses practical 'advantages 'of importance which may bementioned the following: The said top` i .bearing surfaces of thenpperbearingmemb'er and the v than, those yshown in curved end stoparecontin'uous with each other so that there are no projections'oneither of the parts on which x said bearing `surfaces or stops areformed against which 1. the roller may bethrown with-thejresult of atendency \,\to break such yproj,e'ctio`ns .or mar' the periphery VVofthe plier. Again the arrangement of connecting the parts which saidstraight curved surfaces are formed the manner describedhas theadvantage ef'greatly strengthening the bearing at the ends thereof. itwill b` observed thatthis feature oi our invention' vis espe-vcially-applicable to a closed top bearing or vwherein the top wall ofthe shell or casing is made integral with thev side and end wallsthereof.

As shown in' Fig; 5 the feature oi'thecurved end stop surfaces formedcontinuous withl A bearing surface, may be applied to a castbearingwherein said surfaces are formed on integral parts o'-said topand end yvall, 'instead ofupon a removable bearing plate as ldescribed'.As shown in said figure, the upper bearing a constitutes thelower laceof the upper vwall oi the casing, andthe curved'stops aT a at the endsoi thelcasing are iormedon the end walls al a which are the said top andend ,wa-ils, iin this'instance, being made oi greater strength the priorconstruction. vantages. oi continuity of surl'aeeand strength'o'i thecasing obtains in this form'of bearing as it does in the A ing )etweenthesame grooves in winch ilt'the lower same general manner.4 inthevbearing scribed. I

previously de As .a means of holding the lower track' membra-- againstlateral stress, the said track members D are prof' vided with outer andinner parallel (langes fl r l ',*l`orm margins 'of the sideywall'of thecasing, as more clearly readilyinserted into'and removed from 'rollerhereinshown may constitute riphery oi theA roller .of the bearing aretotherefore,'and not terms of limitation.v

. .The manner of connecting the v bearing casing with the chamber memberthereof is notf.

rollertrnnnions oi thework of ar-l '.lacbb, July-5, 1906,'Serial No.324,847.

for reasons among.

`with end bearings, tracks on on which said end bearingsrestandroll,said relier hnvthe -u'pper straight l trunnlons, ltracks The ail--A"ment -wllh the roller und' ciu'ved bers, tlieupper member being formedto shown Figs. 2 and .3. This construction constitutes a double lock andcontributes to the strength and durabilitye the casingjas a whole., V

Our-invention, while illustrated` as embodied in a roller side bearingfor railway ears, may obviously be employed vin other relations wherethe 'construction i describedin the claims' are applicablef' Forinstance,- the essential features of the bearing may-be appliedjt'o thebearing at `the center plate of a ,carv truck between the truckand'body'bolster. vMoreover th'e'- lower member of lthe bearingarranged' to present the 'roller toa de vvliL wardly facing bearingsurlace.- Speciiicf terms'v.' em ploy'ecl herein as indicating i trackmember 'of 'the' messing and the upper and lower parte beregardedastermsoi'description,

herein claimed per se, this construction being made the subject' matteroi aprior, application illed by-Jolin- We claim as our inventionef I i.Ina'roller bearing for railway cars, a casing formed to provlde :inelongated, downwardly opening roller cham- .ber provided at its Itopwith i1 downwardly l'ncing hollv on' which the end bearings of therollerrest and' roll, the

end walls of the casing being curved complementally to the cylindricsurface of the rollerand serving as stop surfncesto ari-'est the,travelof the roller, suid curved stop surfaces being continuous with undformed on the sume pai-basthehoriaontal downwardly facinuhearlngsurface, the roller having free' i'olling-movement endwlse of thel'casing und vertical' movementrelutively lto the tracks.

A roller bearing flor ruiiway cnrs und the like, cem-A p sing a casingformed to provide an elongated', downwardly opening roller chamber, aroller therein provided the side walls of the casing ing free rollingmovementcndwlse 'of the casing und ver- -tical movement relatively tothe tx-: icks, :mda wear-plate in said chamber provided withn flathorizontal, down- '\vnrdly facing llO prlsing;r a casing formed toprovide un elongated, ld'ow-n- ..1

wnrdly opening' roller chamber, u roller. thereln having end madeseparate vfrein und removably se-y cured to the casing. ou whlch'suidroller trunnions, i'est und roll, said roller ,having free rollingmovement endwlse of the 'casing and vertical movement relatively-'to thetrucks, und arempvnble wear plate in said rollerchamber held in pince hythe-removable track member.

4. A roller hearing for railway cnrs and the like, coniprisimg; ncasini: ormed to provide an elonimteddownwardly opening roller chamber,n' ioilei'..tiiereln provided with endbenrinizs, trncks made separatefrom und re- -nim-:lilly secured to the cnsing'on which said endbearings 'rest Vand roil;s1\id roller ll:\vi11g. fre'rollingmovcmentendwise of the cnslni: und vertical movement 'relatively to thetrucks. :md a wear pluie iirsnid chamber' provided with n horizontaldownwardly facing beni-lng surface Aforenrgrlme- -l downwardly ut: its`ends lo eonslilzi-.te stopslo nl'rest the ltravel of the roller lneither direction, the lowerends of 'said curved; portlnns'ot the weer'plate eugnulmx the removable track whereby H'aid wear phitc is heid'lnplnce 5. 'A roller hezu'lni: for rnliwiry, curs und thoVlike', comi. f i

of sepnrablenpper and 'lower inernlos prislni: x1'v casing.; mildeprovide nn cloni gated, downwardly opening roller c hambez, :l roller insaid chamberI provided with end irunnions, said lower mellber beim;fcnstl'ucted to T01-m parallel tracks un which the runnjons o1" theP01101' rest and roll and the roller having l're rolling movementendwse'nr the casing (inn wv :llx om* s1 nessus, this 31st dzly of JulyA. l). lQOG,

lu testimony, that: We Claim the foregoing :1S our invenl() natures inthe presumes of two wit- IDWIN S. WOODS. JOHN JACOB. Wtnesse's:

W. L. HALL, Glcolmm B. Wlpxms.

